Insulator support and coupling method



Oct. 26, 1943. D. E. BASLER ETAL 2,332,502

INSULATOR SUPPORT AND COUPLING METHOD Filed Aug. 30, 1941 la Mqeow M KELLEY. Mnnvzy MOTH/ENS.

Nome/6 Patented Oct. 26, 1943 INSULATOR SUPPORTVAND'COUPLINIG METHOD Donnan E. Basler,' Jackson, Mich, Harold W. Kelley, Port St. Joe, Fla., and Norris Whitney Matthews, Caldwell, Ohio Application August 30, 1941, Serial No. 408,928

(Granted under the act of March 3, 1883 as. amended April 30, 1928; 370 0. 757).

1 Claim.

The invention described herein may be manufactured and used by or for the Government of the United States for governmental purposes without the payment to us of any royalty thereon in accordance with the provisions of the act of April 30, 1928 (Ch. 460, 45 St. L. 467).

This invention pertains to improvements in insulators for electric transmission and distribution lines and more particularly to means for mounting pin-type insulators having a conductor saddle.

Inconstructing electric transmission and distribution lines using pin-type insulators which are conventionally threaded and screwed onto a supporting member diificulty has been experienced in aligning the axis of the conductor saddle of the insulator with the conductor and retaining such alignment whenonce properly mounted.

The present invention aims to insure axial alignment of the conductor saddle, in the mounting thereof, with the conductor by the provision of positive positioning means and further aims to insure such positioning by the provision of means preventing disalignment of the saddle axis by rotation of the insulator with respect to its support A further aim of the invention is to provide means for preventing the accidental or unintentional lifting of the insulator from its support, such as by undue tension on a conductor secured within the saddle of the insulator.

A further object of the invention is to provide an improved insulator-supporting member adapted to cooperate with the insulator for the accomplishment of the aforesaid objects.

The foregoing and other objects of the invention will become apparent from a reading of the following specification and appended claim. Certain embodiments having the characteristics of our invention and by which the same may be practiced are illustrated in the accompanying drawing in which,

Figure 1 is a view in side elevation of an embodiment of our invention, a portion of the insulator support being broken away to illustrate the formations and cooperative relationship of elements;

Figure 2, an elevation of a slightly modified embodiment of our invention in assembled form;

Figure 3, a view in perspective of unassembled elements of the Figure 1 embodiment;

Figure 4, a view in perspective of the unassembled elements of an adaptation of our invention; and

Figure 5, an elevational view of the Figure 4 zo ductor to be carried therein.

embodiment modified to the extent of eliminating the vertical locking means.

Broadly, the invention resides in modifying the shank of conventional insulators of the type identified and correspondingly modifying the insulator-engaging end, or portion, of the insulator support to provide a non-rotative relationship between the respective members when mounted; to provide a clamping engagement by the support with respect to the insulator; to provide positive and restricted positioning of the axis of the conductor saddle of the insulator; and if desired to provide means preventing axial movement of the insulator with respect to its support.

According to our invention the foregoing aims andobjects are accomplished by providing an insulator 10 with a mounting shank II which is non-circular, as shown in Figures 1-3, and providing' an insulator support l2, as shown in the latter figures, which is so formed as to nonrotatively receive the insulator mounting shank H only in a manner whereby the axis of the conductor saddle 13hr the insulator I0 is in proper predetermined alignment with the con- -The foregoing aims and objects may also be accomplished according to our invention by providing a circular insulator mounting shank M, as shown in Figures 4 and 5, with a key i5 and providing an insulator support [6, shown in the latter figures, which is so formed as to nonrotatively receive the insulator mounting shank M in a manner whereby the axis of saddle [3 of the insulator is in proper predetermined alignment.

In the embodiment of Figures 1 and 3 the shank is of rectangular formation and disposed so as to have its greatest length correspond with the axis of the saddle [3. The cooperative insulator support !2 for the embodiment of Figures 1 and 3 is provided with a seat-portion I! which is in turn provided with a socket I8 of configuration corresponding with that of the shank l I. In order to seat the insulator upon the seatportion ll of the support the insulator shank l I must first be brought into registry with the socket l8, thereby positively bringing the axis of the insulator saddle I3 into predetermined alignment. In order to secure the insulator in seated relationship with the support l2 means are provided for clamping the insulator shank H between the Walls of the socket I8. Suitable means for this purpose may comprise a bolt l9 extending through the forward end portions 20 of the seat-portion ll whereby the end portions 20 may be drawn into clamping relationship with the walls of the insulator shank II.

In the embodiment of Figures 1 and 3 the shank l I may be inserted into the socket 18 of the support inza vertical direction or; by-"the removalof the bolt ll, longitudinally into the opening. In this respect the embodiment of Figure 2 differs from that of Figures 1 and 3 by the provision o1; shoulders 2| adapted to pass beneath. the seatportion I1 and serve as means forpre'ventmgthe' vertical lifting of the insulator from its support; In mounting this modified embodimemtthebolt I!) must first be removed anditheahankx Hipasaed.

horizontally into the socket IS. The bolt l9,

Figure 2 embodiment, when once installed serves as means for locking the insulator within the socket against longitudinal movement and'the:

shoulders 2| as means for preventing the-vertical movement of the insulator. this. arrangement there need not be a clamping'action as re quiredin the. Figures 1; andva-embodiment to lock the insulator to the-support.

In the embodiments of' Figuresigand" 5 the circular insulator mounting, shank Mzis provided with a fiange'or key. H'nandthe. cooperating insuilator supportzlfiis providedrwith a socket 22-.hav.-- ing a gap in one w all thereoiand a bolt,

through a pair of ears 25. extending from opposite sides'of the. gap 23-. Thesocketu iszoi a size andconfiguration aszwill-receive the shank I4 and the;

gap- 23 suchas will permitthekey I5to pass thereintoi I'hepositioning of the-key,- liand the gap. 23.- is such as willv predeterminately fix the direction ofthe; axis of: theinsulator saddle l3 with respect to the support'whenthemembers are cooperatively assembled, When: assembled a tightening of the bolt uiwill bring about' a clamping. of the insulator. shanks lLwithin-the socket.

22. By this arrangementithe key l5-and slot 23- not .alone serve. tolocate themmpen. saddle axis in alignment. with a, conductor, butialso-serveto insure against rotary, displacement of the 111511? later. with respectto the support. The widthv of. thegap. 23 maybe. such, but notnecessarily so, as

will afford a clampingaction uponthe key l.5 aswell as, upon. the. insulator. shank. l4. when. the bolt. 24. is tightened. For. simplicity. in. construc.- tion thekey I5, may be anintegrally formed-pontion of the insulator, but other manners of formation or manners of providing a shank with an alignment-finder key may be equally suitable and within the scope of the invention.

To insure against unintentional lifting of the insulator shank- M fromithe support socket 22, the walls of the socket-forming member may be drilled through as at 26 and 21, Figure 4, and the shank I4 of the insulator similarly notched as gt 28;.Plgum-4; tocooperatively receive a pin 9 which, when installed, will serve to interlock the respective. elements. against separation even in theeventthattheiinsulator shank is not clamped within-the socketZZ of the support.

Except forthe features described, the insulator supports may otherwise be of any standard or designed types, such as are known in commerce as pole-top pins, side brackets, "cross-arm pins? or-clamps,"'etc;, which are conventionally provided with a threaded end portion for engagement with athreaded shank of conventional insulators.

Except as limitedby, the scope 011 the appended what we insulator. having a mounting shank provided with an integral. aligning key and. atransverse pin-receiving. recess, an. insulator support providedwitha socketfor. saidshank andkey and a hole. aligning. with said. recess. of the, insulator shank, and. meansadaptedto be. secured in said alignedv pin-receiving recess. and. socketv opening for detachably locking. said insulator in. said socket.

DONNAN E..BASLER. HAROLD W; KELLEY. NORRIS. WHITNEY MATTHEWS. 

